CN103890636B - HUD comprising surrounding photocontrol - Google Patents
HUD comprising surrounding photocontrol Download PDFInfo
- Publication number
- CN103890636B CN103890636B CN201280051658.4A CN201280051658A CN103890636B CN 103890636 B CN103890636 B CN 103890636B CN 201280051658 A CN201280051658 A CN 201280051658A CN 103890636 B CN103890636 B CN 103890636B
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- light
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- ambient light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
Abstract
A kind of embodiment of plumbing of present invention description, the plumbing include near-end, distal end, front surface and rear surface, and the rear surface is spaced apart with the front surface.Show input area be positioned at the proximal end or near, surrounding input area is positioned on the front surface in the proximate distal ends and output area is positioned on the rear surface in the proximate distal ends.One or more optical elements are positioned in the waveguide or are adjacent to waveguide positioning will show that light is directed to the output area and the ambient light from the surrounding input area is directed to the output area from the display input area, and changeable mirror layer is positioned in the waveguide or in the waveguide optionally controlling the amount of the ambient light for being directed into the output area.The present invention is disclosed and claimed other embodiments.
Description
Technical field
Described embodiment generally relates to HUD, and in particular (but non-exclusively) it is related to one kind
HUD comprising surrounding photocontrol.
Background technology
HUD watches the scene while permission in scene of the user in relevant information overlay in front of which, makes
The user that the HUD must be browsed simultaneously views both scene and relevant information.For example, when aircraft landing is made
The pilot for browsing HUD makes such as speed, course and the height of landing aircraft needs in HUD projected flight person
Airport (scene) above is seen by HUD simultaneously during information (relevant informations) such as degree.
Being potentially prone to for HUD, there may be contest or competition between scene and displayed information.Work as scene
When more much brighter than displayed information, there is an example of competition so that the scene overwhelms described information and causes in control
When seeing compared with bright field landscape, dark information is difficult to see that.Opposite situation can also occur:Information is much brighter than scene, so that
It is difficult to see that compared with dark scene when being watched by the bright information shown in display.
Description of the drawings
With reference to the non-limiting and non-exhaustive embodiments that following figure describes the present invention, wherein similar in all views
Ref. No. refers to similar component, unless otherwise prescribed.
Fig. 1 is the cross-sectional view of the embodiment of HUD.
Fig. 2 is the cross-sectional view of another embodiment of HUD.
Fig. 3 is the cross-sectional view of another embodiment of HUD.
Fig. 4 is the cross-sectional view of another embodiment of HUD.
Fig. 5 A-5C are the views of the embodiment of the patterning of the changeable mirror layer in HUD.
Fig. 6 is the cross-sectional view of another embodiment of HUD.
Fig. 7 A-7B are the cross-sectional views for making the embodiment of the method for HUD.
Fig. 8 is the top cross section schema of the embodiment of HUD.
Specific embodiment
The present invention is described for the equipment of HUD comprising surrounding photocontrol, the embodiment of system and method.Retouch
Numerous specific details are stated to provide a thorough understanding of embodiments of the present invention, but those skilled in the relevant art will be recognized that,
Can without one of described specific detail or one or more of in the case of or by other methods, component, material etc. practice this
Invention.In some instances, do not show in detail or describe well-known structure, material or operation, however which is still contained
Lid is within the scope of the invention.
Referring to for " one embodiment " or " embodiment " is meant with reference to the embodiment institute in the whole text in this specification
The special characteristic of description, structure or characteristic are contained in the embodiment described by least one.Therefore, phrase in this manual
" in one embodiment " or the appearance of " in one embodiment " is not necessarily all referring to same embodiment.Additionally, at one or one
In individual above example, the special characteristic, structure or characteristic can be combined in any suitable manner.
The embodiment of Fig. 1 graphic extensions HUD 100.Ripple of the display 100 comprising positioning optical element 104 in which
102 are led, and optical element 104 allows the display to be directed to by the light from display 112 and from the ambient light of scene 114
In the eyes 110 of the user of device.In some instances, the light from scene is by substantially than the light from display, so as to
So that the information from display is difficult with family and sees.
Another embodiment of Fig. 2 graphic extensions HUD 200.Display 200 is comprising with rear surface 203, front table
The waveguide 202 in face 205, near-end 204 and distal end 206.As used in the present application, term " waveguide " is any comprising passing through
The combination (such as transmission, reflection, total internal reflection, refraction and diffraction) of mechanism or mechanism seals electromagnetic energy and/or by electromagnetic energy
Measure from position and be directed to any device of another location.Waveguide 202 can be by being substantially transparent in wavelengths of interest
Any kind of material is made;In one embodiment, for example, waveguide 202 can be made up of plastics such as such as Merlon,
But in other embodiments, which can be made up of different materials such as such as glass.Be positioned on rear surface 203 at near-end 204 or
Neighbouring is the display input area 208 for receiving the light from display 220.In different embodiments, display 220 can be
The display of LCOS panel, LCD, oled panel or other species a certain.Similarly, at distal end 206 or near be
It is positioned on front surface 205 to receive the surrounding input area 210 of the ambient light from scene 222 and be positioned on rear surface 203
Output area 212 with both to user or two 213 output display light of eyes and ambient light.
It is being optical element in the optical element 214 near near-end 204 and near the distal end 206 in waveguide 202
216.Optical element 214 is located to receive by showing that input area 208 enters the light of waveguide 202 and draws again institute's receiving light
Lead and/or focus in waveguide 202 so which passes through the waveguide to advance towards optical element 216.In other words, optics unit
Part 214 can have focal power, this mean its can by cause light ray assemble or diverging and make light focusing.Illustrated
Embodiment in, optical element 214 can be the curved inner surface to form focus lamp, but in other embodiments, which can be certain
One other types of optical element.
Optical element 216 is positioned at distal end 206 nearby so which can reflect towards output area 212 and/or focus on from display
Device 220 receives the light of waveguide 202 so that the display light is guided towards eyes of user 213.Meanwhile, optical element 216 is permitted
Perhaps the ambient light for entering waveguide 202 by input area 210 around from scene 222 travels across the waveguide and through output
Area 212 and reach eyes of user 213.In the illustrated embodiment, optical element 216 is the inside table with focal power
Face is that is, which can make light focus on which and can reflect and/or focus on and pass through ripple by causing light ray convergence or diverging
The display light of 202 receptions is led, while allowing the ambient light from scene 222 to travel to eyes 213.In one embodiment, light
It can be half-silvered mirror to learn element 216, but in other embodiments, optical element 216 can be some other type of optical element
(such as polarization beam apparatus) or the surface with some other type of coating.
Optical element 216 can also be comprising the changeable mirror layer 218 being formed above at least a portion of the optical element.
Changeable mirror layer (one layer of switchable mirror material) is following layer:Which can be changed by applying electrical bias to the layer opaque
Degree.The example of switchable mirror material includes can be from the Kent photovoltaic company (Kent of New York Hopewell point of interface
Optronics of Hopewell Junction, New York) liquid crystal material buied.Variable and controllable electric bias source 224
It is coupled to changeable mirror layer 218 to allow the control of the opacity to the layer.In one embodiment, changeable mirror layer
218 opacity will be directly related with the electrical bias amount for being applied so that can make essence along from wherein changeable mirror layer
The complete opaque state that the substantial transparent state that upper all light pass through is not passed light through to wherein described layer continuous
Any place of spectrum sets the opacity of the layer.
In the operation of HUD 200, the light produced by display 220 is guided to cause towards display input area 208
Which enters waveguide 202.After waveguide 202 is entered, the light is rebooted and/or focused on through ripple by optical element 214
Lead 202 to advance towards optical element 216.After the light for carrying out self-waveguide 202 is received, optical element 216 is at once towards output area
212 reboot and/or focus on the display light, wherein described show that light then projects waveguide 202 and goes forward side by side the eyes of access customer
213.
With receive from display 220 light simultaneously, waveguide 202 is received from scene 222 by surrounding input area 210
Ambient light.If applied to it is substantially transparent that the electrical bias of changeable mirror layer 218 causes the layer, then by defeated around
The substantial all ambient lights for entering the entrance of area 210 will proceed through changeable mirror layer 218 and traveling is worn by a part for the light
Cross optical element 216 and waveguide 202 is projected by output area 212 and reaches the eyes 213 of user.If applied to switchable mirror
It is substantially opaque that the electrical bias of layer 218 causes the layer, then substantially own by what input area 210 around entered
Ambient light finally will not project waveguide by output area 212.If applied to the electrical bias of changeable mirror layer 218 cause described
Layer is opaque for part, then only certain part in the light entered by input area 210 around finally will be by output area
212 project waveguide.The amount of the ambient light of the eyes 213 of user is gone to by so control, is projected can display light and be surpassed and
Ambient light from scene.In other embodiments, the brightness of display 220 also can control, so as to provide balance display and field
The additional ways of scape brightness.
Another embodiment of Fig. 3 graphic extensions HUD 300.Display 300 is comprising with rear surface 303, front table
The waveguide 302 in face 305, near-end 304 and distal end 306.Waveguide 302 can be by being substantially transparent any kind in wavelengths of interest
The material of class is made;In one embodiment, for example, waveguide 302 can be made up of plastics such as such as Merlon, but at which
In its embodiment, which can be made up of different materials such as such as glass.Although not showing in this figure, show that input area is positioned at ripple
Lead at near-end 304 or near.The display input area is optically coupled to display 320 so that show that light is imported into ripple
Lead in 320.Near distal end 306 be positioned on front surface 305 with receive around the ambient light of scene 322 be input into
Area 308 and it is positioned on rear surface 303 with the defeated of both to user or two 213 output display light of eyes and ambient light
Go out area 310.
Be positioned at distal end 306 or neighbouring be optical element 312,314 and 316, its cooperation is receiving from aobvious
Show the light for travelling across waveguide 302 of device 320 and institute's receiving light is rebooted towards output area 310, therefore show light by direction
Eyes of user 213 is guided.Optical element 312 allows to enter waveguide 302 from scene 322 by input area 308 around simultaneously
Ambient light travel across the waveguide and projected by output area 310 and reach the eyes 213 of user.
In the illustrated embodiment of display 300, optical element 312 is polarization beam apparatus.312 optics of beam splitter
It is coupled to the focus lamp 314 being positioned at distal end 306 and the quarter-wave plate being clipped between optical element 314 and distal end
316.In other embodiments, optical element 312,314 and 316 can be other types of optical element, on condition that Individual elements
And combinations thereof realize desired result.
Be positioned on front surface 305 at least part of top of input area 308 around is changeable mirror layer 318.Variable
And controllable electric bias source 324 is coupled to changeable mirror layer 318 to allow to control the layer by changing applied electrical bias
Opacity.In general, the opacity of changeable mirror layer 318 will be directly related with the amount of applied electrical bias so that
The substantial transparent state that substantially all light pass through can be made to wherein described switchable mirror along from wherein changeable mirror layer
Any place of the continuous spectrum of the complete opaque state that layer is not passed light through sets the opaque of the changeable mirror layer
Degree.
In the operation of HUD 300, by display 320 produce through polarized light near-end 304 or near enter
Entering waveguide 302 and distal end 306 being advanced to through the waveguide, which runs into polarization beam apparatus 312 at the distal end 306.When from ripple
When leading 302 display illumination and being mapped on polarization beam apparatus, the beam splitter allows directly to travel across which through polarized light.Traveling is worn
The light for crossing beam splitter 312 travels across quarter-wave plate 316 (which makes 45 degree of the polarization rotation) and then runs into focus lamp
314.Focus lamp 314 reflects and/or focuses on through polarized light, so as to which to be back directed across quarter-wave plate 316.Wear at which
Cross quarter-wave plate 316 the second stroke when, rotated another 45 degree through the polarization of polarized light so that running into polarization again
During beam splitter, show that the polarization of light is amounted to 90 degree by rotation.As this 90 degree polarizations change, when display light runs into for the second time partially
Shake beam splitter 312 when, beam splitter towards 310 reflective display light of output area non-permitted its pass through.Show that light then projects waveguide
302 and enter the eyes 213 of access customer.
With receive from display 320 light simultaneously, waveguide 302 can be received from scene 322 by surrounding input area 308
Unpolarized ambient light, this depend on changeable mirror layer 318 state.If applied to the electrical bias of changeable mirror layer 318 makes
It is substantially transparent to obtain the layer, then the substantial all ambient lights entered by input area 308 around will proceed through
Changeable mirror layer 318 and polarization beam apparatus 312 and waveguide is projected by output area 310 and reaches the eyes 213 of user.If applied
The electrical bias for being added to changeable mirror layer 318 causes the layer for substantially opaque, then substantially without ambient light by week
Enclose input area 308 to enter.If applied to the electrical bias of changeable mirror layer 318 causes the layer opaque for part, then
Entered by surrounding input area 308 from only certain sub-fraction of the ambient light of scene 322 and projected finally by output area 310
Waveguide.The amount of the ambient light of the eyes 213 of user is gone to by so control, and display light can be made to project and surpass from scene
Ambient light.
Another embodiment of Fig. 4 graphic extensions HUD 400.Display 400 is similar in construction to display
300, Main Differences replace polarization beam apparatus for display 400 using partially reflecting mirror 402.Due to replacing the polarization beam splitting
Device, display 400 are omitted quarter-wave plate 316.In one embodiment, partially reflecting mirror 402 is 50% reflection, this
Mean which reflects the 50% of incident illumination and allows another the 50% of incident illumination to pass through.However, in other embodiments, these hundred
It can be different to divide ratio.In the illustrated embodiment, partially reflecting mirror 402 only can be formed by changeable mirror layer so that
Appropriate electrical bias can be applied to control the relative luminance for showing light and ambient light.In other embodiments, can with as show
The changeable mirror layer for being formed at least part of top of input area 308 around in device 300 is used together the portions such as such as half-silvered mirror
Divide reflecting mirror.
In the operation of display 400, the light that produced by display 320 near-end 304 or near enter waveguide 302 and
Distal end 306 is advanced to through the waveguide, which runs into partially reflecting mirror 402 at the distal end 306.When display illumination is mapped to the portion
When dividing on reflecting mirror, the mirror allows certain sub-fraction of incident illumination to travel across which.Travel across the display of partially reflecting mirror
Light then runs into focus lamp 314, and focus lamp 314 reflects and/or focuses on the light and guides which back towards partially reflecting mirror.
When showing that light runs into partially reflecting mirror 402 for the second time, the partially reflecting mirror allows the reflected part for showing light to pass through, and
Remainder towards 310 reflective display light of output area.The display light then projects waveguide 302 and enters the eyes of access customer
213.
With receive from display 320 light simultaneously, partially reflecting mirror 402 can by surrounding input area 308 receive from
The ambient light of scene 322.If applied to it is substantially transparent that the electrical bias of partially reflecting mirror 402 causes which, then reach
All display light of partially reflecting mirror all will not be guided towards output area 310, and pass through the essence of the entrance of surrounding input area 308
Upper all ambient lights will pass through partially reflective mirror and project waveguide by output area 310 and reach the eyes 213 of user.The portion
Reflecting mirror is divided effectively to be disappeared from the ken of user, this will be with advantage when display is turned off.If applied to part
It is substantially opaque that the electrical bias of reflecting mirror 402 causes the mirror, then be incident in substantial on partially reflecting mirror 402
All light (either showing light or ambient light) will all be not allowed to pass through.
If applied to the electrical bias of partially reflecting mirror 402 causes the mirror opaque for part, then be incident in portion
That divided on reflecting mirror 402 shows that light and only certain sub-fraction of ambient light project waveguide finally by output area 310.Citing comes
Say, can be directed to 50% transmission and set the biasing, partially reflecting mirror 402 will serve as 50% (half silver-plated) mirror in this case.Come
50% will be attenuated from the ambient light of scene, and show that light will be attenuated 75%.Or, can set and described be offset so that part
Reflecting mirror 402 is 90% transmission and 10% reflection;In the described situation, the 90% of ambient light will be projected by output area 310, but
Show that only the 9% of light will be projected by the output area.By so controlling the eye for going to user using partially reflecting mirror 402
The amount of the ambient light of eyeball 213, can make display light project and surpass the ambient light from scene.
Fig. 5 A-5C graphic extensions can be used in any one of embodiment of HUD described in subject application
Changeable mirror layer patterning embodiment.Fig. 5 A graphic extensions pattern 500, wherein changeable mirror layer are formed comprising which is covered
The no matter at least one of single area 502 of which kind of component on.When electrical bias is applied to area 502, whole area changes
Its opacity so that it is substantially uniform in whole region that opacity changes.Fig. 5 B graphic extensions pattern 525 another
One embodiment, wherein changeable mirror layer are divided into multiple adjacent indivedual sub-districts or tile.In one embodiment, each watt
Piece can be for can individually be controlled by electrical bias source, and in other embodiments, the tile is divided into some groups, each
Group is individually controllable.By individually or with group's form control switchable mirror tile, output area can be directed light to
Partly other parts are not directed to.Another embodiment of Fig. 5 C graphic extensions pattern 550, wherein changeable mirror layer are divided into
The circular central area 552 surrounded by multiple adjacent switchable mirror rings 554.In one embodiment, center 552 and ring
Each of 554 can be can individually to be controlled by electrical bias source, but in other embodiments, can be to different switchable mirror regions
It is grouped and is jointly controlled it.
Another embodiment of Fig. 6 graphic extensions HUD 600.Display 600 is similar to display 300, mainly poor
Different is to the addition of control system 602 in display 600.First photoelectric detector P1 is positioned in waveguide 302 or waveguide 302
On, the first photoelectric detector P1 can measure the intensity for showing light in waveguide 302.Second photoelectric detector P2 is positioned at waveguide
In 302 or in waveguide 302, the second photoelectric detector P2 can measure the intensity of the ambient light from scene 322 in waveguide 302.
In various embodiments, each of photoelectric detector P1 and P2 can be photodiode, phototransistor, photoconductive resistance
Device, imageing sensor or some other type of sensor that can measure light.In one embodiment, P1 and P2 can be identical
The sensor of type, but in other embodiments, which is without the need for being identical.
Both first photoelectric detector P1 and the second photoelectric detector P2 are coupled to control circuit 602, and control circuit 602 exists
Wherein comprising in order to monitor and assess its input received from P1 and P2 and using these inputs produce the circuit of control signals with
Logic, control circuit 602 can be then used by the control signal control electrical bias source 324 and/or display 320 with automatic Horizon
Weigh both relative luminances.
Fig. 7 A-7B graphic extensions are used for the embodiment of the method for making HUD 300.Illustrated method is also
Can be used to make other display disclosed herein.The Part I of Fig. 7 A graphic extension methods describeds, leads to used in which
Cross one or more 706 detached lower panels 702 of distance piece and upper board 704 to form mould.The mould encapsulated member
Product 712.Top plate 704 has hole 710 wherein to allow to inject material in volume 712, and distance piece 706 has ventilation
Hole 708 is escaped from volume 712 in injection material with allowing gas.
By the optical element (such as 326 (if present) of polarization beam apparatus 312 and additional optical elements) inside waveguide
It is appropriately positioned within volume 712 and through fixed so which does not move.Then pass through hole 710 to inject material in volume 712,
So which surrounds internal optical component and allows the material solidification.When solidified, the material will be held in will optical element
In appropriate location.Any material with required optical characteristics can be used;In one embodiment, for example, the material
Can be the plastics such as such as Merlon.
The next part of Fig. 7 B graphic extension methods describeds.When material solidifies in the mould inside, can be removed described
Mould, so that leave waveguide 302.The element being positioned on the outside of waveguide of HUD can then be added to complete to show
Device.For example, changeable mirror layer 318 can be deposited on the front side 305 of waveguide, while optics compatibility binding agent can be used by four
/ mono- ripple plate 316 and 314 is attached to the distal end of waveguide, during the optics compatibility binding agent will be held in position in will component
Also result in seldom or do not cause optical distortion.Display unit (displaying) then can be optically coupled to the near-end of waveguide.
Fig. 8 is implemented as the top view of the embodiment of the HUD 800 of a pair of glasses.HUD 800 includes
Each of a pair of eyepieces 801, eyepiece 801 can be one of HUD 200,300,400 or 600, wherein glasses
Piece serves as waveguide.Eyepiece 801 is installed to the frame assembly comprising the bridge of the nose 805, left ear arm 810 and auris dextra arm 815.Although it is described
Figure graphic extension binocular-type embodiment (two eyepieces), but also HUD 800 can be embodied as monocular formula (eyepiece)
Embodiment.
Eyepiece 801 is fastened in wearable glasses arrangement on the head of user.Left ear arm 810 and auris dextra arm 815 are put
It is placed on the ear of user, and the bridge of the nose 805 is held on the nose of user.The frame assembly is shaped and sizing is with general
Viewing area 830 is positioned at the front of the corresponding eyes 213 of user.Certainly, can use and there are other framework compositions other shapes of
Part (the protective eye lens, single continuous headband receiver part, headband or swimming glasses type glasses for example, with ear arm and nostril bridge support part
Deng).
The viewing area of each eyepiece 801 allows user to watch outer scene via ambient light 870.Can be by being coupled to eyepiece
801 display 802 produces left and right and shows light 830 so that show that light 830 is viewed by a user as being superimposed on the outer scene
On image.The changeable mirror layer in eyepiece can be used to stop or optionally stop ambient light 870.
Above description comprising the embodiments of the invention of content described in abstract of invention be not intended to as exhaustive or
Limit the invention to disclosed precise forms.Although the specific reality of the present invention is described herein for illustration purposes
Example and example is applied, but as those skilled in the relevant art will be recognized that, various equivalent modifications can be made within the scope of the invention.
These modifications can be made to the present invention according to discussed in detail above.
Term used in appended claims should not be construed to limit the invention to description and claim
Specific embodiment disclosed in book.But, the scope of the present invention is resided in the claims hereinafter appended completely, the right
Claim will be understood according to the claim canons of construction for being created.
Claims (18)
1. a kind of plumbing, which includes waveguide, and the waveguide includes:
Near-end, distal end, front surface and rear surface, the rear surface are spaced apart with the front surface;
Show input area, its proximal end or near;
Around the proximate distal ends on the front surface input area and in the rear on surface the proximate distal ends output
Area;
One or more optical elements, its are positioned in the waveguide or are adjacent to waveguide positioning with will be from described
Show input area shows that light is directed to the output area and is directed to the ambient light from the surrounding input area described defeated
Go out area;And
Changeable mirror layer, its are positioned in the waveguide optionally to control to be directed into the ambient light of the output area
Amount,
Wherein one or more than one optical element is included in the interior surface with focal power of the proximate distal ends, and
And
Wherein described switchable mirror layer is positioned in the interior surface.
2. equipment according to claim 1, wherein described switchable mirror layer scalable are directed into the week of the output area
Enclose the amount of light.
3. equipment according to claim 2, wherein described switchable mirror layer are controlled using variable electrical bias.
4. equipment according to claim 2, wherein described switchable mirror layer can be allowed substantially all ambient lights guiding
To the output area and can allow substantially ambient light not to be directed to the output area.
5. equipment according to claim 1, wherein described switchable mirror pattern layers have individually controllable area with by the week
Enclose the part that light is optionally directed to the output area.
6. equipment according to claim 5, wherein described switchable mirror pattern layers have multiple adjacent switchable mirror tiles.
7. equipment according to claim 5, wherein described switchable mirror pattern layers have by radius increase multiple adjacent
The center switchable mirror circle that surrounded of concentric switchable mirror ring.
8. equipment according to claim 1, which further includes:
First photoelectric sensor, its in order to measure described show light intensity;
Second photoelectric sensor, which is in order to measuring the intensity of the ambient light;
Control circuit, its are coupled to first photoelectric sensor and second photoelectric sensor, and are coupled to optics coupling
The display of the waveguide is closed, and is coupled to variable and controllable electrical bias source.
9. a kind of HUD system, which includes:
Waveguide, it include:
Near-end, distal end, front surface and rear surface, the rear surface are spaced apart with the front surface,
Show input area, its proximal end or near,
Around the proximate distal ends on the front surface input area and in the rear on surface the proximate distal ends output
Area,
One or more optical elements, its are positioned in the waveguide or are adjacent to waveguide positioning with will be from described
Show input area shows that light is directed to the output area and is directed to the ambient light from the surrounding input area described defeated
Go out area, and
Changeable mirror layer, its are positioned in the waveguide optionally to control to be directed into the ambient light of the output area
Amount;
Display, is optically coupled to the display input area;And
Controllable electric bias source, its are coupled to the changeable mirror layer,
Wherein one or more than one optical element is included in the interior surface with focal power of the proximate distal ends, and
And
Wherein described switchable mirror layer is positioned in the interior surface.
10. system according to claim 9, wherein described switchable mirror layer can be controlled using the controllable electric bias source
To adjust the amount of the ambient light for being directed into the output area.
11. systems according to claim 10, wherein described switchable mirror layer can allow to draw substantially all ambient lights
Lead the output area and can allow substantially ambient light not to be directed to the output area.
12. systems according to claim 9, wherein described switchable mirror pattern layers are coupled to the controllable electrical bias
Source is so that the ambient light to be optionally directed to the indivedual controllable area of the part of the output area.
13. systems according to claim 12, wherein described switchable mirror pattern layers have multiple adjacent switchable mirrors watt
Piece.
14. systems according to claim 12, wherein described switchable mirror pattern layers have the multiple neighbours increased by radius
The center switchable mirror circle surrounded by the concentric switchable mirror ring for connecing.
15. systems according to claim 9, which further includes:
First photoelectric sensor, its in order to measure described show light intensity;
Second photoelectric sensor, which is in order to measuring the intensity of the ambient light;And
Control circuit, its are coupled to first photoelectric sensor and second photoelectric sensor, and are coupled to described aobvious
Show device, and be coupled to the controllable electric bias source.
A kind of 16. methods for HUD, which includes:
Waveguide is positioned at the front of at least eyes of user, the waveguide includes:
Near-end, distal end, front surface and rear surface, the rear surface are spaced apart with the front surface,
Show input area, its in the proximal end,
Around input area and output area, its in the far-end,
One or more optical elements, its are positioned in the waveguide or are adjacent to waveguide positioning with will be from described
Show input area shows that light is directed to the output area and is directed to the ambient light from the surrounding input area described defeated
Go out area, and
Changeable mirror layer, its are positioned in the waveguide optionally to control to be directed into the ambient light of the output area
Amount;
Display light from display is directed in the display input area;
Ambient light from scene is directed in the surrounding input area;And
The electrical bias of the changeable mirror layer is applied to by control to adjust the ambient light that is seen by the user and show light
Relative scale,
Wherein one or more than one optical element is included in the interior surface with focal power of the proximate distal ends, and
And
Wherein described switchable mirror layer is positioned in the interior surface.
17. methods according to claim 16, its further include by control the brightness of the display come adjust by
The ambient light that the user sees and the relative scale for showing light.
18. methods according to claim 16, which further includes:
The measurement intensity for showing light;
Measure the intensity of the ambient light;And
Using the intensity and the intensity of measured ambient light of measured display light, by controlling the electrical bias or institute
The brightness of display or the brightness of the electrical bias and the display is stated, is automatically regulated and is seen by the user
The ambient light for arriving and the relative scale for showing light.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/284,743 US20130108229A1 (en) | 2011-10-28 | 2011-10-28 | Heads-up display including ambient light control |
US13/284,743 | 2011-10-28 | ||
PCT/US2012/049939 WO2013062655A1 (en) | 2011-10-28 | 2012-08-08 | Heads-up display including ambient light control |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103890636A CN103890636A (en) | 2014-06-25 |
CN103890636B true CN103890636B (en) | 2017-03-15 |
Family
ID=48168282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201280051658.4A Active CN103890636B (en) | 2011-10-28 | 2012-08-08 | HUD comprising surrounding photocontrol |
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CN (1) | CN103890636B (en) |
WO (1) | WO2013062655A1 (en) |
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Also Published As
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US20130108229A1 (en) | 2013-05-02 |
WO2013062655A1 (en) | 2013-05-02 |
CN103890636A (en) | 2014-06-25 |
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